Showing 601 - 620 results of 1,540 for search '"electromagnetic"', query time: 0.04s Refine Results
  1. 601

    Magnetoelastic plane waves in rotating media in thermoelasticity of type II (G-N model) by S. K. Roychoudhuri, Manidipa Banerjee (Chattopadhyay)

    Published 2004-01-01
    “…For low frequency (χ≪1, χ being the ratio of the wave frequency to some standard frequency ω∗), the rotation and the thermal field have no effect on the phase velocity to the first order of χ and then this corresponds to only one slow wave influenced by the electromagnetic field only. But to the second order of χ, the phase velocity, attenuation coefficient, and the specific energy loss are affected by rotation and depend on the thermal parameters cT, cT being the nondimensional thermal wave speed of G-N theory, and the thermoelastic coupling εT, the electromagnetic parameters εH, and the transverse magnetic field RH. …”
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  2. 602

    Resonant Frequency Modeling of Microwave Antennas Using Gaussian Process Based on Semisupervised Learning by Jing Gao, Yubo Tian, Xie Zheng, Xuezhi Chen

    Published 2020-01-01
    “…For the optimal design of electromagnetic devices, it is the most time consuming to obtain the training samples from full wave electromagnetic simulation software, including HFSS, CST, and IE3D. …”
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  3. 603

    Quantum Fisher information of N-level atoms under the influence of the thermal field and the Stark effect by S. Jamal Anwar, M. Ibrahim, M. Khalid Khan, Haifa S. Alqannas, S. Abdel-Khalek

    Published 2025-01-01
    “…Hence, non-moving and moving-N-level atomic systems interacting with the electromagnetic field in the presence of the SS are supportive of maintaining and sustaining the QE.…”
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    Design and Analysis of a Five-Band Polarization-Insensitive Metamaterial Absorber by Han Wu, Shijun Ji, Ji Zhao, Chengxin Jiang, Handa Dai

    Published 2020-01-01
    “…The five-band absorber has potential application in multiband electromagnetic stealth, bionic sensor, thermal radiation measuring instrument, and so on.…”
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  7. 607

    Measurement of degree of non-uniformity of electric field by S. S. Kolmogorova, A. S. Kolmogorov, S. V. Biryukov

    Published 2018-04-01
    “…Examination of the degree of non-uniformity of the electromagnetic field assumes the estimate necessary for determining the type of the field and further standard classification, for the purpose of establishing dependencies and determining the applicability of existing and developed sensors in research of parameters of electromagnetic fields. …”
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  8. 608

    Dual Jet Interaction, Magnetically Arrested Flows, and Flares in Accreting Binary Black Holes by Sean M. Ressler, Luciano Combi, Bart Ripperda, Elias R. Most

    Published 2025-01-01
    “…Supermassive binary black holes in galactic centers are potential multimessenger sources in gravitational waves and electromagnetic radiation. To find such objects, isolating unique electromagnetic signatures of their accretion flow is key. …”
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  9. 609

    Radiofréquences et santé : améliorer l’évaluation des risques by Olivier Merckel, Johanna Fite, Olivia Roth-Delgado

    Published 2016-12-01
    “…This paper aims to explore the regulatory changes, which apply, to wireless technologies in terms of the development of knowledge related to exposure to radiofrequency electromagnetic fields and health effects that could be associated. …”
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  10. 610

    An Overview of Recent Advances in the Iterative Analysis of Coupled Models for Wave Propagation by D. Soares, L. Godinho

    Published 2014-01-01
    “…Many works have been published on this subject, addressing the case of electromagnetic, acoustic, or elastic waves and making use of different strategies to perform this coupling. …”
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  11. 611

    Research on Architecture of LEO Satellite Internet of Things and Key Technologies by Xiaojin DING, Tao HONG, Rui LIU, Wentao PENG, Gengxin ZHANG

    Published 2021-12-01
    “…First, we analyzed the composition and demand characteristics of LEO satellite IoTs, and designed an architecture of LEO satellite IoTs.Second, to extracted characteristics of electromagnetic environment and channel, we studied electromagnetic environment and channel sensing methods through constructing neural network model.Then, we investigated an active terminal-identifi cation method for detecting active terminals.Finally, considered multiple-input multiple-output as the main approach to improved the capacity of terrestrial mobile communication systems, we explored a pair of algorithms of mining satellite spatial resources for realizing the collision mitigation and capacity improvement of LEO IoT terminals.Simulation results showed that the designed method sofmining spatial-domain resources could mitigated eff ectively signal collisions among IoT terminals, and improved signifi cantly the concurrent accessing number of LEO satellite IoT terminals.…”
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  12. 612

    Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE by Gordeev Pavel

    Published 2025-01-01
    “…Historically, the first one used the decay channel Σ+ → pπ0 with reconstruction of the proton with the tracking systems at mid-rapidity and the π0 in the electromagnetic calorimeter EMCAL or via the photon conversion method. …”
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  15. 615

    Modeling of the 2.4 GHz wireless channel path loss in substation by Qiang LI, Hongxin ZHANG, Jiaqi LUO, Yang LU, Jianqi LI, Yinghua LV

    Published 2016-07-01
    “…In order to assess the influence of electromagnetic interference in the substation of the electric power communication system,frequency measurement method was adopted to obtain the data of 2.4 GHz electromagnetic wave path loss of the substation of 110 kV and 220 kV in a certain city.By using the method of minimum mean square error (MMSE) and cumulative sum (CUSUM) to estimate the parameters of path loss model such as path loss index and the standard deviation,the path loss model was set up according to measured data,respectively.The simulation results show that the gap between estimation results and the measured values is not big.In addition,a ZigBee simulation system was constructed to simulate the relationship of bit error rate (BER) varies with distance in two cases of the signal to noise ratio (SNR) at 5 dB and 10 dB respectively.A research basis for short distance wireless communication devices decorated in the substation environment was provided.…”
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  16. 616

    Enhanced Ehlers transformation and the Majumdar-Papapetrou-NUT spacetime by Marco Astorino

    Published 2020-01-01
    “…After analysing the Ehlers and the Reina-Treves transformations we propose a new one, more precise in the presence of the Maxwell electromagnetic field. The enhanced Ehlers transformation proposed turns out to act as a gravitomagnetic duality, analogously to the electromagnetic duality, but for gravity: it rotates the mass charge into the gravomagnetic (or NUT) charge. …”
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  17. 617

    Calculation of Differential Propagation Constant Determined by Plant Morphology Using Polarimetric Measurement by Chufeng Hu, Nanjing Li

    Published 2014-01-01
    “…The morphology of vegetation greatly impacts propagation of polarized electromagnetic wave. In order to validate this phenomenon, the mathematical relation between the differential propagation constant of forest vegetation and of its polarized echo is quantitatively derived by using backscattering power profile. …”
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    Quasinormal modes of regular black holes with sub-Planckian curvature and Minkowskian core by Chen Tang, Yi Ling, Qing-Quan Jiang, Guo-Ping Li

    Published 2024-12-01
    “…Abstract We investigate the perturbation of the scalar field as well as the electromagnetic field over a sort of regular black holes which are characterized by the sub-Planckian curvature and the Minkowskian core. …”
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  20. 620